/* ================================================
   ARCHONX.AI — APPLE-STYLE MINIMAL DESIGN
   Clean white/black, generous whitespace, refined type
   ================================================ */

/* =================== RESET & BASE =================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --bg-alt: #f5f5f7;
    --text: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-muted: #86868b;
    --accent: #0071e3;
    --accent-hover: #0077ed;
    --border: rgba(0, 0, 0, 0.08);
    --nav-height: 52px;
    --container-max: 1120px;
    --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    overflow-x: hidden;
    font-size: 17px;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* =================== TYPOGRAPHY =================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 600;
    line-height: 1.08;
    letter-spacing: -0.025em;
    color: var(--text);
}

.gradient-text {
    color: var(--text);
}

/* =================== BUTTONS =================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 24px;
    border-radius: 980px;
    font-family: inherit;
    font-weight: 400;
    font-size: 17px;
    cursor: pointer;
    transition: all 0.3s var(--ease);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
}
.btn-primary svg {
    display: none;
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    padding: 12px 0;
}
.btn-secondary:hover {
    text-decoration: underline;
}

.btn-large {
    padding: 16px 32px;
    font-size: 17px;
}

/* =================== NAVBAR =================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 1001;
}
.logo-icon {
    display: none;
}
.logo-text {
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
}
.logo-x {
    color: var(--text);
}
.logo-dot {
    color: var(--text-muted);
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
}
.nav-link {
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 400;
    color: var(--text);
    border-radius: 0;
    transition: color 0.3s;
    opacity: 0.8;
}
.nav-link:hover {
    opacity: 1;
}
.nav-link--cta {
    background: none;
    color: var(--text) !important;
    padding: 6px 14px;
    border-radius: 0;
    margin-left: 0;
    font-weight: 400;
    opacity: 0.8;
}
.nav-link--cta:hover {
    opacity: 1;
    box-shadow: none;
    transform: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 18px;
    height: 1px;
    background: var(--text);
    transition: all 0.3s var(--ease);
}

/* =================== HERO =================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 24px 80px;
    background: var(--bg);
}

.hero-bg,
.hero-particles {
    display: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 780px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 980px;
    background: var(--bg-alt);
    border: none;
    margin-bottom: 28px;
    animation: fadeIn 0.8s var(--ease) 0.2s both;
}
.badge-pulse {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #34c759;
    animation: none;
}
.badge-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0;
}

.hero-title {
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 24px;
    animation: fadeIn 0.8s var(--ease) 0.4s both;
}

.hero-subtitle {
    font-size: 21px;
    font-weight: 400;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto 36px;
    line-height: 1.52;
    animation: fadeIn 0.8s var(--ease) 0.6s both;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 0;
    animation: fadeIn 0.8s var(--ease) 0.8s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 56px;
    animation: fadeIn 0.8s var(--ease) 1s both;
    padding: 0;
    border-radius: 0;
    background: none;
    border: none;
    backdrop-filter: none;
    margin-top: 80px;
}
.hero-stat {
    text-align: center;
}
.hero-stat-value {
    font-size: 56px;
    font-weight: 600;
    letter-spacing: -0.04em;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: var(--text);
    color: var(--text);
}
.hero-stat-suffix {
    font-size: 40px;
    font-weight: 600;
    letter-spacing: -0.04em;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: var(--text);
    color: var(--text);
}
.hero-stat-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: none;
    letter-spacing: 0;
    margin-top: 6px;
    font-weight: 400;
}
.hero-stat-divider {
    width: 1px;
    height: 44px;
    background: var(--border);
}

.hero-scroll-indicator {
    display: none;
}

/* =================== SECTIONS COMMON =================== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 0;
    border-radius: 0;
    font-size: 14px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    color: var(--text-secondary);
    background: none;
    border: none;
    margin-bottom: 12px;
}
.section-tag--red {
    color: var(--text-secondary);
    background: none;
    border-color: transparent;
}
.section-tag--cyan {
    color: var(--text-secondary);
}
.section-tag--gold {
    color: var(--text-secondary);
    background: none;
    border-color: transparent;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 19px;
    color: var(--text-secondary);
    max-width: 540px;
    margin: 0 auto;
    font-weight: 400;
}

/* =================== ABOUT =================== */
.section--about {
    background: var(--bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.about-card {
    background: var(--bg);
    border: none;
    border-radius: 20px;
    padding: 40px 32px;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.about-card::before {
    display: none;
}
.about-card:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.about-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--text);
}

.about-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}
.about-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.58;
}

/* =================== PROBLEM =================== */
.section--problem {
    background: var(--bg);
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: flex-start;
}

.problem-description {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.58;
}

.problem-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.problem-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border-radius: 12px;
    background: var(--bg-alt);
    border: none;
    transition: transform 0.3s var(--ease);
    font-size: 15px;
    color: var(--text);
}
.problem-item:hover {
    transform: translateX(4px);
}

.problem-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
    flex-shrink: 0;
}
.problem-icon--red {
    background: #fef2f2;
    color: #ef4444;
}
.problem-icon--cyan {
    background: #ecfdf5;
    color: #10b981;
}

/* =================== FEATURES =================== */
.section--features {
    background: var(--bg-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.feature-card {
    position: relative;
    background: var(--bg);
    border: none;
    border-radius: 20px;
    padding: 40px 36px;
    overflow: hidden;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.feature-card:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.feature-card-glow {
    display: none;
}

.feature-card--large {
    grid-column: span 2;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--text);
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}
.feature-desc {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.58;
    margin-bottom: 16px;
}

.feature-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 980px;
    font-size: 12px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    color: var(--text-secondary);
    background: var(--bg-alt);
    border: none;
}

.card-link {
    display: inline-block;
    margin-top: 16px;
    font-size: 15px;
    font-weight: 400;
    color: var(--accent);
    transition: color 0.3s;
}
.card-link:hover {
    text-decoration: underline;
}

.feature-sub-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}
.feature-sub {
    display: flex;
    gap: 12px;
    padding: 20px;
    border-radius: 14px;
    background: var(--bg-alt);
    border: none;
}
.feature-sub-icon {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--text);
    line-height: 0;
}
.feature-sub strong {
    display: block;
    margin-bottom: 4px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}
.feature-sub p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

/* =================== VISUAL BREAK =================== */
.section--visual-break {
    position: relative;
    padding: 120px 0;
    min-height: auto;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--text);
}
.visual-break-bg {
    display: none;
}
.visual-break-content {
    position: relative;
    z-index: 2;
    text-align: center;
}
.visual-quote {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: 16px;
    font-style: normal;
    letter-spacing: -0.03em;
    color: #fff;
}
.visual-quote .gradient-text {
    color: #fff;
}
.visual-quote-sub {
    color: rgba(255, 255, 255, 0.6);
    font-size: 17px;
    font-weight: 400;
}

/* =================== MARKETS =================== */
.section--markets {
    background: var(--bg);
}

.markets-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.market-card {
    background: var(--bg-alt);
    border: none;
    border-radius: 20px;
    padding: 32px 24px;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
    display: flex;
    flex-direction: column;
}
.market-card:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.market-icon {
    margin-bottom: 16px;
    color: var(--text);
    line-height: 0;
}

.market-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.24;
    letter-spacing: -0.01em;
}
.market-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.52;
    flex: 1;
}

.market-metrics {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    flex-wrap: wrap;
}
.market-metric {
    padding: 4px 10px;
    border-radius: 980px;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
}

/* =================== IMPACT =================== */
.section--impact {
    background: var(--bg-alt);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.impact-card {
    text-align: center;
    padding: 48px 32px;
    border-radius: 20px;
    background: var(--bg);
    border: none;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.impact-card:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.impact-ring {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
}
.impact-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}
.impact-ring-bg {
    fill: none;
    stroke: var(--bg-alt);
    stroke-width: 6;
}
.impact-ring-fill {
    fill: none;
    stroke: url(#ringGradient);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 339.292;
    stroke-dashoffset: 339.292;
    transition: stroke-dashoffset 2s var(--ease);
}
.impact-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.03em;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: var(--text);
    color: var(--text);
}

.impact-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}
.impact-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.52;
}

/* =================== INVEST =================== */
.section--invest {
    background: var(--bg);
}

.invest-card {
    position: relative;
    background: var(--text);
    border: none;
    border-radius: 28px;
    padding: 80px 64px;
    overflow: hidden;
}

.invest-glow {
    display: none;
}

.invest-content {
    position: relative;
    z-index: 2;
    text-align: center;
}
.invest-content .section-tag {
    color: rgba(255, 255, 255, 0.5);
}
.invest-content .section-title {
    color: #fff;
}
.invest-content .section-title .gradient-text {
    color: #fff;
}

.invest-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.6);
    max-width: 620px;
    margin: 0 auto 40px;
    line-height: 1.58;
}

.invest-model {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 40px;
}

.invest-model-item {
    display: flex;
    gap: 14px;
    text-align: left;
    padding: 24px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: none;
}
.invest-model-icon {
    flex-shrink: 0;
    color: rgba(255, 255, 255, 0.7);
    line-height: 0;
}
.invest-model-item strong {
    display: block;
    margin-bottom: 4px;
    font-size: 15px;
    color: #fff;
}
.invest-model-item p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    line-height: 1.5;
}

.invest-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}
.invest-actions .btn-primary {
    background: #fff;
    color: var(--text);
}
.invest-actions .btn-primary:hover {
    background: rgba(255, 255, 255, 0.85);
}
.invest-actions .btn-secondary {
    color: rgba(255, 255, 255, 0.8);
}
.invest-actions .btn-secondary:hover {
    color: #fff;
}

/* =================== FOOTER =================== */
.footer {
    padding: 48px 0 32px;
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer .nav-logo .logo-icon {
    display: none;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 12px;
    max-width: 260px;
    line-height: 1.52;
}

.footer-links-group h4 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 16px;
    font-weight: 600;
}
.footer-links-group ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links-group a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.3s;
}
.footer-links-group a:hover {
    color: var(--text);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}
.footer-bottom-links {
    display: flex;
    gap: 20px;
}
.footer-bottom-links a {
    font-size: 13px;
    color: var(--text-muted);
    transition: color 0.3s;
}
.footer-bottom-links a:hover {
    color: var(--text);
}

/* =================== ANIMATIONS =================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Reveal animations — simplified */
.reveal-up, .reveal-left, .reveal-right {
    opacity: 0;
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
    transition-delay: var(--delay, 0s);
}
.reveal-up { transform: translateY(20px); }
.reveal-left { transform: translateX(-20px); }
.reveal-right { transform: translateX(20px); }

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* =================== PAGE HERO (SUB-PAGES) =================== */
.page-hero {
    padding: 140px 0 80px;
    text-align: center;
    background: var(--bg);
}
.page-hero-title {
    font-size: clamp(40px, 7vw, 72px);
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 20px;
    animation: fadeIn 0.8s var(--ease) 0.2s both;
}
.page-hero-subtitle {
    font-size: 19px;
    font-weight: 400;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.52;
    animation: fadeIn 0.8s var(--ease) 0.4s both;
}
.page-hero .section-tag {
    animation: fadeIn 0.8s var(--ease) 0s both;
}

/* =================== CONTENT BLOCKS =================== */
.content-block-split {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    align-items: flex-start;
}
.content-block-left {
    position: sticky;
    top: 80px;
}

.body-large {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}
.body-large:last-child {
    margin-bottom: 0;
}
.body-large strong {
    color: var(--text);
}

.content-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 16px;
}
.content-list li {
    padding: 12px 18px;
    background: var(--bg-alt);
    border-radius: 10px;
    font-size: 15px;
    color: var(--text);
    line-height: 1.52;
}
.section--about .content-list li {
    background: var(--bg);
}
.content-list--numbered {
    counter-reset: step;
}
.content-list--numbered li {
    counter-increment: step;
}

.content-highlight {
    margin-top: 28px;
    padding: 28px;
    border-radius: 16px;
    background: var(--bg-alt);
    border: none;
}
.section--about .content-highlight {
    background: var(--bg);
}
.content-highlight h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.content-highlight p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.58;
}

.content-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.content-col-item {
    padding: 24px;
    border-radius: 16px;
    background: var(--bg-alt);
    border: none;
}
.section--about .content-col-item {
    background: var(--bg);
}
.content-col-item h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}
.content-col-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.58;
}

.content-pillars {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 24px;
}
.content-pillar {
    padding: 24px;
    border-radius: 16px;
    background: var(--bg-alt);
}
.section--about .content-pillar {
    background: var(--bg);
}
.content-pillar h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}
.content-pillar p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.58;
}

/* PILLAR NUMBERS */
.pillar-number {
    display: block;
    font-size: 64px;
    font-weight: 700;
    letter-spacing: -0.04em;
    color: var(--border);
    line-height: 1;
    margin-bottom: 16px;
}

/* =================== MARKET ROI STRIP =================== */
.market-roi-strip {
    display: flex;
    gap: 16px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.roi-item {
    flex: 1;
    min-width: 100px;
    padding: 20px;
    border-radius: 14px;
    background: var(--bg-alt);
    text-align: center;
}
.section--about .roi-item {
    background: var(--bg);
}
.roi-value {
    display: block;
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 4px;
}
.roi-label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
}

/* =================== PRICING TIERS =================== */
.tier-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.tier-card {
    padding: 36px 28px;
    border-radius: 20px;
    background: var(--bg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.tier-card:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}
.tier-card--featured {
    border: 2px solid var(--text);
}
.tier-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.tier-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}
.tier-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.58;
    margin-bottom: 16px;
}
.tier-for {
    font-size: 13px;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* =================== FUND ALLOCATION =================== */
.fund-grid {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.fund-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.fund-bar-container {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
}
.fund-bar {
    height: 100%;
    border-radius: 3px;
    background: var(--text);
    transition: width 1.5s var(--ease);
}
.fund-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.fund-header {
    display: flex;
    align-items: baseline;
    gap: 12px;
}
.fund-percent {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--text);
    flex-shrink: 0;
}
.fund-header h3 {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.3;
}
.fund-info p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.58;
}

/* =================== MILESTONES =================== */
.milestone-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.milestone-item {
    display: flex;
    gap: 20px;
    padding: 28px 0;
    border-bottom: 1px solid var(--border);
}
.milestone-item:first-child {
    padding-top: 0;
}
.milestone-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.milestone-marker {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text);
    flex-shrink: 0;
    margin-top: 6px;
}
.milestone-item h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}
.milestone-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.58;
}

/* =================== RESPONSIVE =================== */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; }
    .markets-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-card--large { grid-column: span 1; }
    .feature-sub-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .content-block-split { grid-template-columns: 1fr; gap: 40px; }
    .content-block-left { position: static; }
    .tier-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 32px 40px;
        gap: 0;
        transition: right 0.35s var(--ease);
        border-left: none;
    }
    .nav-links.open { right: 0; }

    .nav-link {
        padding: 16px 0;
        font-size: 28px;
        font-weight: 600;
        letter-spacing: -0.02em;
        width: 100%;
        border-bottom: 1px solid var(--border);
        opacity: 1;
    }
    .nav-link--cta {
        margin-left: 0;
        margin-top: 8px;
        font-size: 28px;
        border-bottom: none;
    }

    .nav-toggle { display: flex; }
    .nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .nav-toggle.open span:nth-child(2) { opacity: 0; }
    .nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

    .hero { min-height: auto; padding: 120px 24px 80px; }
    .hero-title { font-size: clamp(36px, 10vw, 52px); }
    .hero-stats { flex-direction: column; gap: 32px; margin-top: 56px; }
    .hero-stat-value { font-size: 44px; }
    .hero-stat-suffix { font-size: 32px; }
    .hero-stat-divider { width: 40px; height: 1px; }
    .hero-actions { flex-direction: column; gap: 12px; }

    .problem-grid { grid-template-columns: 1fr; gap: 48px; }
    .features-grid { grid-template-columns: 1fr; }
    .markets-grid { grid-template-columns: 1fr; }
    .impact-grid { grid-template-columns: 1fr; gap: 16px; }
    .invest-card { padding: 48px 24px; border-radius: 20px; }
    .invest-model { grid-template-columns: 1fr; }
    .invest-actions { flex-direction: column; }
    .invest-actions .btn { width: 100%; justify-content: center; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

    .page-hero { padding: 100px 0 48px; }
    .page-hero-title { font-size: clamp(32px, 8vw, 48px); }
    .content-two-col { grid-template-columns: 1fr; }
    .market-roi-strip { flex-direction: column; }
    .roi-item { min-width: auto; }
    .section { padding: 64px 0; }
}